Hey guys, this has been on my mind for quite a long time, but who do you think the dark wizard zeref really is?
I think it's possible that his full name is Zeref Dragneel and he is Natsu's real father before Igneel.

Also, as of the grand magic games arc, in the anime, do you think this could possibily be zeref (With his memories partially gone)?
Note: The person on the left with the black hair

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Just a thought, it may be in the manga, or may not I am only currently watching the anime for Fairy Tail xD

Okay, here is my incomplete theory. "Zeref" from the "Grimoire Heart Arc" is Romeo, either the Edolas Romeo by more likely present day Romeo who got send to the past 400- 450 years ago. He is not really "Zeref" who is like a God of Hatred or something to the effect, but has infected Romeo in the same fashion as Jellal. My gut is telling me that Jellal is Acnologia who likely went back in time to stop Zeref but in order to do so had to tap into some forbidden power he could not control.

Okay, here is my incomplete theory. "Zeref" from the "Grimoire Heart Arc" is Romeo, either the Edolas Romeo by more likely present day Romeo who got send to the past 400- 450 years ago. He is not really "Zeref" who is like a God of Hatred or something to the effect, but has infected Romeo in the same fashion as Jellal. My gut is telling me that Jellal is Acnologia who likely went back in time to stop Zeref but in order to do so had to tap into some forbidden power he could not control.

Damn! that is a great theory. haha never thought of it that way, but don't you think he would still call him natsu-nii? idk just imo

hmmm......the idea of Zeref being either future Romeo because the original was pulled back in time due to the door thing in the grand magic games or edolas Romeo (and again being pulled back in time because of the door)
of course we'd only be able to find out after or during the great dragon assault >:D

With how much logic goes into Fairy Tail nowadays I'd rather just wait until it comes out rather than speculate. I've got my ideas, and I agree that it might be future Romeo or something to do with Eclipse. However, all I can guarantee is that whoever the final antagonist is, Zeref or whoever, Natsu will beat them. It's a battle manga for goodness sake.

Okay, here is my incomplete theory. "Zeref" from the "Grimoire Heart Arc" is Romeo, either the Edolas Romeo by more likely present day Romeo who got send to the past 400- 450 years ago. He is not really "Zeref" who is like a God of Hatred or something to the effect, but has infected Romeo in the same fashion as Jellal. My gut is telling me that Jellal is Acnologia who likely went back in time to stop Zeref but in order to do so had to tap into some forbidden power he could not control.

Damn! that is a great theory. haha never thought of it that way, but don't you think he would still call him natsu-nii? idk just imo

I think Zeref did call Natsu, Natsu-nii. Or something similar. He seems to care for him.